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Finding the Fourth Proportional to 13,067.47, 18,033.42 and 7,099.48

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Solution

The fourth proportional to 13,067.47, 18,033.42 and 7,099.48 is: 9,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.47 : 18,033.42 = 7,099.48 : x
  2. Step 2: Convert to fraction form
    13,067.47/18,033.42 = 7,099.48/x
  3. Step 3: Cross multiply
    13,067.47x = 18,033.42 × 7,099.48
  4. Step 4: Simplify right side
    13,067.47x = 128,027,904.62
  5. Step 5: Solve for x
    x = 128,027,904.62/13,067.47
  6. Step 6: Final answer
    x = 9,797.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.